IsoFax
The facts below are what the maker publishes about IsoFax, checked and dated. Our editors have not written about it yet.
Plans and prices
From IsoFax's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| IsoFax | Priced on request | Pricing based on number of fax lines |
The facts
Each one read from IsoFax's own pages, with the date it was checked.
What it does
- Coversheets
- IsoFax supports client- or server-generated coversheets, including server-side coversheets for large distribution lists.checked 8 Oct 2026
- Downloads
- Access to the Bristol Group Downloads page requires contacting technical support for a password.checked 8 Oct 2026
- Fax capacity
- The site lists up to 128 digital fax modems per server, or standard analog fax modems.checked 8 Oct 2026
- Fax over IP
- IsoFax 12.2 supports inbound and outbound Fax over IP using the Dialogic Brooktrout SR-140 T.38 stack.checked 8 Oct 2026
- Maintenance terms
- Customers under maintenance can rehost an IsoFax server without charge, and US customers with maintenance contracts are entitled to a backup license set.checked 8 Oct 2026
- Product
- IsoFax is a centralized network fax solution for high-volume fax delivery.checked 8 Oct 2026
- Queue management
- The server monitors submitted fax queues and modem pools, supports multiple queues with selectable priorities, and logs fax activity.checked 8 Oct 2026
- Routing and retries
- Features include least-cost routing across geographically distributed fax servers and retries that resend only failed pages while avoiding calls identified as non-fax calls.checked 8 Oct 2026
- Security statement
- The maker describes IsoFax as secure and says T.38 allows private, error-free faxing between an IsoFax server and PSTN gateway or between T.38-capable endpoints.checked 8 Oct 2026
- SIP connectivity
- The maker says customers can connect through PBXs and SBCs such as Cisco and Avaya, or directly to T.38-capable SIP trunks including Verizon, CenturyLink, and Sprint.checked 8 Oct 2026
- Submission methods
- Faxes can be submitted through Windows and Unix GUI clients, scripts using the IsoFax toolkit/API, or SMTP email with MIME attachments.checked 8 Oct 2026
- Support
- Technical support is available by email and at +1 415-256-2525, press 2.checked 8 Oct 2026
- Supported operating systems
- The site lists Linux, Windows, Solaris, HP-UX, and AIX as supported platforms.checked 8 Oct 2026
- Web access
- The product description lists web clients alongside GUI clients, routing options, email-to-fax, and APIs.checked 8 Oct 2026
The company
- Founded
- 1987checked 28 Sep 2026
- Maker and history
- The product is offered by The Bristol Group, Ltd., which says it was founded in 1987.checked 8 Oct 2026
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